Najaf is one of Islam's holiest cities, home to the magnificent Imam Ali Shrine with its golden dome and minarets, attracting millions of Shia pilgrims annually. The city houses the world's largest cemetery, Wadi-us-Salaam, and serves as a major center of Islamic learning with its renowned hawza seminaries. As the burial place of Imam Ali, the first Shia Imam and fourth Caliph, Najaf holds profound spiritual significance for Muslims worldwide.